Blizzard has promised that it will try to keep the same balance as in the original release

Sep 10, 2012 07:57 GMT  ·  By

A new video for the upcoming Starcraft II: Heart of the Swarm strategy game shows off all the units that the expansion will add to the multiplayer side of the game, also offering a quick look at how they can be used during battles.

Heart of the Swarm will focus on the Zerg race and the adventures of Kerrigan when it comes to the single-player mode, but the team at Blizzard is adding units to all the multiplayer sides and trying to make sure that the entire experience is balanced.

At the moment, Starcraft II: Heart of the Swarm is in closed beta and those who have a Battle.net account and play a lot of the game have a good chance of getting access, according to Blizzard.

The company says that more players will be able to experience the multiplayer only beta before the end of the year and Heart of the Swarm currently lacks a clear launch date.